Error was:
/home/carl/kdesrc/kde/workspace/kwin/plugins/platforms/x11/windowed/x11windowed_output.cpp: In member function ‘void KWin::X11WindowedOutput::initXInputForWindow()’: /home/carl/kdesrc/kde/workspace/kwin/plugins/platforms/x11/windowed/x11windowed_output.cpp:134:14: error: invalid use of non-static member function ‘xcb_window_t KWin::X11WindowedOutput::window() const’ 134 | Q_UNUSED(window) | ^~~~~~ In file included from /home/carl/kdesrc/kde/workspace/kwin/plugins/platforms/x11/windowed/x11windowed_output.cpp:20: /home/carl/kdesrc/kde/workspace/kwin/plugins/platforms/x11/windowed/x11windowed_output.h:50:18: note: declared here 50 | xcb_window_t window() const { |